Wilby Family History

English: habitational name from any of the places called Wilby, in Suffolk, Norfolk, and Northamptonshire. The first is probably named from an Old English wilig ‘willow’ + Old English beag ‘circle’; the second has the same first element + Old Norse býr ‘farmstead’ or Old English beag, and the last is named with the Old English or Old Scandinavian personal name Villi + býr.

Source: Dictionary of American Family Names ©2013, Oxford University Press